< leases

SAND HILLS TUBB UNIT

Oil · District 08 · Lease #37794

Operator: VANGUARD PERMIAN, LLC

Fields: SAND HILLS (CLEAR FORK 4070)

Cum Oil

11k BBL

Cum Gas

40k MCF

casinghead

Wells

1

Production

2006-07 — 2020-07

Peak Month

2006-09

Production History

Cum Oil: 10,572 BBL Cum Gas: 40,064 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

132 BBL/mo

Di (annual)

19.6%

b-factor

0.0

EUR

8,024 BBL

R-squared

0.709

type

exponential

Operator History (from monthly production reports)

2023-11 — 2026-07 FORMENTERA OPERATIONS LLC 33 mo
2022-07 — 2023-10 SLANT OPERATING, LLC 16 mo
2022-01 — 2022-06 CONTANGO RESOURCES, LLC 6 mo
2021-02 — 2021-12 CONTANGO RESOURCES, INC. 11 mo
2019-09 — 2021-01 GRIZZLY OP OF DELAWARE, LLC 17 mo
2015-05 — 2019-08 VANGUARD OPERATING, LLC 52 mo
2012-04 — 2015-04 VANGUARD PERMIAN, LLC 37 mo
2009-09 — 2012-03 ENCORE ENERGY PARTNERS OPER LLC 31 mo
2006-07 — 2009-08 ENCORE OPERATING, L.P. 38 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
942-103-03584FORMENTERA OPERATIONS LLC14,6912005-08-15